Numerical simulations and experiments show that improved algorism of LTI is effective to trace rays including back waves and suitable for computerized tomography to complex object.

数值模拟和试验研究表明LTI改进算法是一种有效的射线追踪方法，能追踪回波，适合复杂对象的层析成像。

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Can we quantitatively image complex structures with rays?

利用射线对复杂构造可定量成像吗？

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Methods By using complex mutagenesis of LiCl and ultraviolet rays, we deal with the simple spore suspension.

方法采用氯化锂和紫外线复合诱变单孢子悬浮液。

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